We're dividing 561516 by 45 
The aim is to understand the frequency of 45 in 561516.

Let's proceed to step 1:
If we divide 5 by 45, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 45

Let's proceed to step 2:
45 goes into 56 1 times with a remainder of 11.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 45 from 56 leaves us with 11.
Take the next digit (1) from the dividend and append it to 11, then repeat: 111 / 45

Advancing to step 3:
45 goes into 111 2 times with a remainder of 21.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Deduct 90 from 111 and we're left with 21.
Append the next digit (5) from the dividend to 21 and continue with: 215 / 45

On to step 4:
45 can be fit into 215 4 times, resulting in a remainder of 35.
Use 4 as the next digit of our solution. 
Result so far: 124.0
The remainder is 35 after subtracting 180 from 215.
Bring next digit (1) of the dividend behind the 35 and repeat the process: 351 / 45

Advancing to step 5:
The number 45 fits into 351 7 times, leaving a remainder of 36.
Put 7 as the next digit of the answer. 
Result so far: 1247.0
If we subtract 315 from 351, we get 36.
Bring next digit (6) of the dividend behind the 36 and repeat the process: 366 / 45

Going ahead to step 6:
45 goes into 366 8 times with a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 12478.0
Deduct 360 from 366 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 7:
When dividing 60 by 45, we get 1 with a remainder of 15.
The next digit of our result is 1. 
Result so far: 12478.1
The remainder is 15 after subtracting 45 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 8:
45 goes into 150 3 times with a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 12478.13
Subtract 135 from 150 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 9:
45 can be fit into 150 3 times, resulting in a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 12478.133
Subtracting 135 from 150 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

In conclusion, the division gives 12478.133 with a balance of 0.0015.